CalcBright Calculators

$75,000 at 10% with a 50% match up to 6% grows to $2.3 million by 65. This 401k calculator applies the 2026 $24,500 limit, catch-ups and a stop age. Web page: https://calcbright.com/401k-calculator

Your exact age in years, months and days from your date of birth, plus total weeks and days, the weekday you were born and how long until your next birthday. Web page: https://calcbright.com/age-calculator

$300,000 at 6.5% for 30 years costs $382,636.71 in interest. This amortization calculator splits each payment and shows extra-payment and settlement savings. Web page: https://calcbright.com/amortization-calculator

$100,000 at 5% pays $659.96 a month for 20 years. This annuity calculator also finds the lump sum for an income and the rate hidden in an insurer’s quote. Web page: https://calcbright.com/annuity-calculator

A 2.99% flat loan with a 1.05% fee is really 6.19% APR. This APR calculator adds upfront fees, converts flat rates and shows the SAMA-style effective rate. Web page: https://calcbright.com/apr-calculator

Area of a rectangle, square, triangle, circle, trapezoid, parallelogram or ellipse from your measurements, with the formula and the working shown. Web page: https://calcbright.com/area-calculator

AED 96,000 at 2.49% flat over 5 years is AED 1,799.20 a month – really 4.72% APR. This car loan calculator adds VAT, trade-in and a final balloon payment. Web page: https://calcbright.com/auto-loan-calculator

Paste a list of numbers to get the mean, median, mode, range, sum and count at once – with the working for each, so you can see why mean and median differ. Web page: https://calcbright.com/average-calculator

70 kg at 1.75 m is a BMI of 22.9. Check your Body Mass Index in kg/cm or lb/ft, the healthy weight range for your height, your BMR and daily calorie needs. Web page: https://calcbright.com/bmi-calculator

Your basal metabolic rate from Mifflin–St Jeor, revised Harris–Benedict and Katch–McArdle side by side, plus daily calorie needs at five activity levels. Web page: https://calcbright.com/bmr-calculator

Body fat % from a tape measure with the US Navy (Hodgdon–Beckett) formula: enter neck, waist and hips to get your ACE category, fat mass and lean mass. Web page: https://calcbright.com/body-fat-calculator

A person 170 cm tall weighing 70 kg has a body surface area of 1.82 m² by the Mosteller formula. See Du Bois and Haycock results next to it, in metric or imperial. Web page: https://calcbright.com/body-surface-area-calculator

How many units must you sell before you make a profit? Enter fixed costs, price and variable cost to get break-even units, revenue and contribution margin. Web page: https://calcbright.com/break-even-calculator

Size an air conditioner or heater in BTU/h, tons and kW from room area, ceiling height, sun and occupants – with a Gulf climate setting for the UAE and Saudi. Web page: https://calcbright.com/btu-calculator

AED 15,000 take-home with AED 66,000 rent and AED 4,000 of other needs is a 63/17/20 budget. Split pay by the 50/30/20 rule, real rent and remittances. Web page: https://calcbright.com/budget-calculator

January 2026 has 22 Mon–Fri working days but 21 on Saudi Arabia’s Fri–Sat weekend. Count or add business days for any weekend, minus public holidays. Web page: https://calcbright.com/business-days-calculator

AED 1.2M to AED 1.65M in 6 years is a 5.45% CAGR, but 4.05% after buying and selling costs. Find CAGR, reverse CAGR, doubling time and real growth. Web page: https://calcbright.com/cagr-calculator

Your maintenance calories, a daily target for losing 0.25–1 kg (0.5–2 lb) a week and the weeks to your goal weight – never set below safe minimum intakes. Web page: https://calcbright.com/calorie-deficit-calculator

Calories burned walking, running, cycling, swimming, lifting and 20+ more activities, from Compendium MET values, your body weight and the time spent. Web page: https://calcbright.com/calories-burned-calculator

$600,000 with 10% down at 4.5% costs $3,081.41 a month once the $16,740 CMHC premium is added. Check the stress test, income needed and bi-weekly savings. Web page: https://calcbright.com/canadian-mortgage-calculator

A $15,000 long-term gain costs a $75,000 earner $2,250 in 2026 federal tax. Short vs long term, 3.8% NIIT, home sale exclusion and the expat stacking rule. Web page: https://calcbright.com/capital-gains-tax-calculator

Car lease payment from price, MSRP, residual, money factor or APR, term and sales tax – split into depreciation, finance charge and tax to check a dealer quote. Web page: https://calcbright.com/car-lease-calculator

Switch text to UPPER, lower, Title or Sentence case, or to camelCase, snake_case and kebab-case for code. It all runs in your browser; nothing is uploaded. Web page: https://calcbright.com/case-converter

$10,000 at 4.25% APY earns $425.00 in 12 months. This CD calculator shows interest for any term, APY vs APR, tax on interest and simple-interest deposits. Web page: https://calcbright.com/cd-calculator

Know a circle’s radius, diameter, circumference or area? Enter any one to get the other three, with the formulas, the working and answers in terms of π. Web page: https://calcbright.com/circle-calculator

Convert any color between HEX, RGB, HSL, HSV and CMYK, preview the swatch, check WCAG 2 contrast on white and black, and get a palette of tints and shades. Web page: https://calcbright.com/color-converter

5% commission on $25,000 of sales is $1,250. Work out flat or tiered commission, the rate behind a fee you paid, and Dubai or Saudi agent fees with VAT. Web page: https://calcbright.com/commission-calculator

$10,000 plus $200 a month at 7% grows to $144,572.72 in 20 years, $86,572.72 of it interest. See the AER, the value after inflation and Gulf savings examples. Web page: https://calcbright.com/compound-interest-calculator

Concrete for slabs, wall footings and post holes in cubic yards and cubic meters, plus how many 40, 60 or 80 lb or 25 kg premix bags to buy for the job. Web page: https://calcbright.com/concrete-calculator

Confidence intervals for a mean (t or z) or a proportion (Wald and Wilson) at 80–99.9% confidence – margin of error, critical value and every step shown. Web page: https://calcbright.com/confidence-interval-calculator

Cups, tablespoons and teaspoons to grams or ounces by each ingredient’s density – a cup of flour is 125 g, a cup of sugar 200 g. US cups, with charts. Web page: https://calcbright.com/cooking-converter

How many days until Christmas, New Year or your own date? See the days, weeks, months and hours left – or the days since a date that has already passed. Web page: https://calcbright.com/countdown-calculator

AED 10,000 at 3.25% a month on only the 5% minimum takes 9 years 9 months and AED 14,869.55 interest. Credit card payoff dates and payments for UAE, KSA, US. Web page: https://calcbright.com/credit-card-payoff-calculator

USD 1,000 is always AED 3,672.50 and AED 10,000 is SAR 10,211.03 at the Gulf pegs. Convert 39 currencies at mid-market rates refreshed several times a day. Web page: https://calcbright.com/currency-converter

Add or subtract days, weeks, months or years from any date to get the exact date and weekday – like 90 days from today. Leap years and month ends handled. Web page: https://calcbright.com/date-calculator

Days between two dates, also shown in weeks, months and years, with weekday and weekend counts. Choose whether to include the end date for event lengths. Web page: https://calcbright.com/date-difference-calculator

What day of the week was it? Get the weekday for any date from 1000 to 9999 – birthdays, historic events, future plans – with Zeller’s working shown. Web page: https://calcbright.com/day-of-week-calculator

$22,600 of debt, $900 a month: debt-free in 30 months, $480.21 less interest with the avalanche. A debt payoff calculator for UAE card rates and loan fees. Web page: https://calcbright.com/debt-payoff-calculator

A 35% debt-to-income ratio passes most US lenders. Gulf banks cap installments at 50% of salary in the UAE, 33.33% in Saudi Arabia and 40% in Kuwait. Web page: https://calcbright.com/debt-to-income-calculator

$50,000 less $5,000 salvage over 5 years is $9,000 a year. Depreciation calculator for straight-line, DDB, SYD, reducing balance and Saudi tax groups. Web page: https://calcbright.com/depreciation-calculator

50% off plus an extra 20% is 60% off, not 70%: AED 400 becomes AED 160. Discount calculator for the sale price, the % off between two prices and the original. Web page: https://calcbright.com/discount-calculator

A $50 share paying $0.50 a quarter yields 4%, but only 2.80% for a Dubai resident after 30% US withholding. Dividend yield, income and the shares you need. Web page: https://calcbright.com/dividend-yield-calculator

A AED 2M Dubai home bought for cash costs AED 126,780 in fees (6.34%): the 4% DLD transfer fee, trustee office, title deed and 2% agent commission plus VAT. Web page: https://calcbright.com/dld-fee-calculator

AED 1.5M Dubai flat: 20% down plus AED 115,170 fees = AED 415,170 cash. Down payment calculator with US, Canada, UAE and Saudi minimums and % from amount. Web page: https://calcbright.com/down-payment-calculator

AED 1.6M over 25 years at 4.25% is AED 8,667.81 a month. Get your Dubai mortgage EMI, the Central Bank’s minimum down payment and the full cash needed. Web page: https://calcbright.com/dubai-mortgage-calculator

EGP 15,000 a month for 7 years: at least EGP 210,000 for an unjustified dismissal, plus EGP 45,000 if you got no notice – Egypt’s 2025 Labour Law. Web page: https://calcbright.com/egypt-end-of-service-calculator

On an EGP 10,000 insurable wage you pay EGP 1,100 a month (11%) and your employer EGP 1,875 (18.75%). 2026 limits: EGP 2,700 to 16,700 under Law 148. Web page: https://calcbright.com/egypt-social-insurance-calculator

A 1.5 kW AC run 10 hours a day adds AED 150.15 to a Dubai bill of 1,800 kWh. Appliance kWh and cost, DEWA slab bills and Saudi tariffs before and after 2027. Web page: https://calcbright.com/electricity-cost-calculator

Exponent calculator for 8^(2/3), 2⁻³ or 2^100: handles negative, decimal and fractional powers and nth roots, with exact big integers and the rule used. Web page: https://calcbright.com/exponent-calculator

FD calculator after TDS: ₹10 lakh at 6.5% for 3 years matures at ₹12,13,407.58 tax-free in an NRE FD, or ₹11,85,215.56 in an NRO FD at the UAE treaty rate. Web page: https://calcbright.com/fd-calculator

$350,000 home, 3.5% down at 6.25%: $2,770.78 a month with $154.80 MIP. FHA payment with 1.75% upfront MIP, 2026 loan limits and a conventional comparison. Web page: https://calcbright.com/fha-loan-calculator

A 12 × 12 ft room with 10% waste needs 8 boxes of 20 sq ft. Turn room size into boxes of laminate, vinyl plank, tile or hardwood to buy, and the material cost. Web page: https://calcbright.com/flooring-calculator

Type 1/2 + 3/4 or 2 3/8 ÷ 1 1/4 and get the answer in lowest terms, as a mixed number and as a decimal, with the common-denominator steps written out. Web page: https://calcbright.com/fraction-calculator

Dubai to Abu Dhabi and back (280 km) at 8 L/100 km costs AED 90.50 on Special 95 in November 2026. Price any trip in litres or mpg and split the cost. Web page: https://calcbright.com/fuel-cost-calculator

Convert mpg to L/100km, km/L or UK mpg in one step: 30 mpg (US) is 7.84 L/100 km and 36.03 imperial mpg. Includes a reference chart for 4–12 L/100 km. Web page: https://calcbright.com/fuel-economy-converter

$10,000 plus $200 a month at 6% grows to $50,969.84 in 10 years. Future value calculator with present value, annuity due and an inflation-adjusted figure. Web page: https://calcbright.com/future-value-calculator

QAR 10,000 basic for 7 years earns QAR 49,000 in Qatar. End-of-service gratuity for Qatar, Kuwait, Bahrain and Oman, each under its own Labour Law article. Web page: https://calcbright.com/gcc-gratuity-calculator

SAR 12,500 basic + housing costs a Saudi SAR 1,218.75 a month in GOSI (9.75%). See the July 2026 new-entrant rate, the 2% for expats and the SAR 45,000 cap. Web page: https://calcbright.com/gosi-calculator

Letter grades A to F with plus and minus, weighted by credit hours, for up to 8 courses. Get this term’s GPA on the 4.0 scale and your new cumulative GPA. Web page: https://calcbright.com/gpa-calculator

At 88% with a final worth 25%, you need 96% on the final to finish with an A. Enter your grade, the exam weight and your target to see the score you need. Web page: https://calcbright.com/grade-calculator

A 10 × 10 ft bed 3 in deep takes 0.93 cubic yards of gravel – about 1.31 tons. Size gravel, stone, sand, topsoil or mulch orders in yards, m³, tons or bags. Web page: https://calcbright.com/gravel-calculator

18% GST on ₹10,000 is ₹1,800 – ₹900 CGST + ₹900 SGST. This GST calculator adds or removes tax at the 5%, 18%, 40% and 3% slabs, IGST and zero-rated exports. Web page: https://calcbright.com/gst-calculator

Zone 2 for a 30-year-old is 114–133 bpm by 220 − age. Get all five training zones from your age, using 220 − age or Tanaka, or personalise them with resting HR. Web page: https://calcbright.com/heart-rate-zone-calculator

Convert cm to feet and inches, or feet and inches to cm, using the exact 2.54 cm inch: 175 cm is 5 ft 8.9 in. Includes a height chart from 150 cm to 200 cm. Web page: https://calcbright.com/height-converter

$50,000 on a HELOC at 7.5% costs $312.50 a month interest-only, then $402.80 – a 28.9% jump. See your credit limit, both payments and a rate-rise test. Web page: https://calcbright.com/heloc-calculator

1 Ramadan 1448 AH is Monday, 8 February 2027. Convert dates Hijri ↔ Gregorian on Saudi Arabia’s official Umm al-Qura calendar, with the weekday and Eid dates. Web page: https://calcbright.com/hijri-date-converter

28 days on a 5-day week, 16.8 on 3 days: UK statutory holiday by days or hours, pro-rata for starters and leavers, untaken days, and 12.07% irregular hours. Web page: https://calcbright.com/holiday-entitlement-calculator

$100,000 a year buys about a $337,657 home under the 28/36 rule. This home affordability calculator also applies UAE limits: 50% of salary and an 80% loan. Web page: https://calcbright.com/home-affordability-calculator

An hours calculator laid out as a weekly time card: start, end and unpaid break per day, totalled as h:mm and decimal hours, with hours over 40 flagged. Web page: https://calcbright.com/hours-calculator

At 175 cm, the Devine formula puts a man’s ideal weight at 70.5 kg. Compare Robinson, Miller, Devine and Hamwi with the healthy BMI range for your height. Web page: https://calcbright.com/ideal-weight-calculator

$100,000 single owes $13,170 in 2026 federal tax – 13.17%, not 22%. IRS brackets, $16,100 standard deduction, $2,200 child credit and the 65+ deductions. Web page: https://calcbright.com/income-tax-calculator

At 3% a year, $100 of shopping costs $134.39 in a decade. This inflation calculator projects prices in any currency and shows if your savings or salary keep up. Web page: https://calcbright.com/inflation-calculator

A $300,000 loan at 6.5% costs $1,625 a month interest-only, then $2,236.72 once repayment starts. Compare it with a standard mortgage and see the extra interest. Web page: https://calcbright.com/interest-only-mortgage-calculator

Paste 192.168.1.10/24 or any IPv4 CIDR to get the network, broadcast, usable host range, subnet and wildcard masks in binary – then split it into equal subnets. Web page: https://calcbright.com/ip-subnet-calculator

JOD 600 a month for 7 years outside social security earns a JOD 4,200 end-of-service bonus in Jordan (Labour Law Art. 32) – even if you resign. Web page: https://calcbright.com/jordan-end-of-service-calculator

7.5% from you, 14.25% from your employer: a JOD 800 wage costs JOD 60 + JOD 114 a month. 2026 SSC ceiling: JOD 3,733 (JOD 5,000 if covered before May 2010). Web page: https://calcbright.com/jordan-social-security-calculator

A $700,000 Ontario home owes $10,475 in land transfer tax – double in Toronto. 2026 rates for every province, BC PTT, Quebec welcome tax and buyer rebates. Web page: https://calcbright.com/land-transfer-tax-calculator

For 12, 18 and 30 the GCD is 6 and the LCM is 180. Get both for up to 20 whole numbers, with each prime factorization shown – GCF and HCF are the same thing. Web page: https://calcbright.com/lcm-gcd-calculator

A 70 kg, 175 cm man has about 56 kg of lean mass by the Boer formula. Enter your height, weight and sex to estimate lean and fat mass in kg or pounds. Web page: https://calcbright.com/lean-body-mass-calculator

AED 100,000 at 3.99% flat over 4 years is AED 2,415.83 a month – really 7.46% reducing. Get the EMI, interest and schedule, with UAE and Saudi limits. Web page: https://calcbright.com/loan-calculator

AED 1.6M owed on a AED 2M Dubai flat is 80% LTV – an expat’s first-home cap. See your LTV, CLTV and equity against UAE, Saudi and US limits. Web page: https://calcbright.com/loan-to-value-calculator

Log calculator for common log (base 10), natural log (ln), log base 2 or any custom base like log₃(81) = 4, with the change-of-base division written out. Web page: https://calcbright.com/logarithm-calculator

Protein and carbs have 4 kcal per gram, fat 9. Turn your Mifflin–St Jeor calorie target into daily grams for fat loss, maintenance or gain in three splits. Web page: https://calcbright.com/macro-calculator

A 50% markup on a $40 cost sells at $60 – a 33.33% margin, not 50%. Find the price from a markup, the markup from a price, or the markup a target margin needs. Web page: https://calcbright.com/markup-calculator

MAD 8,000 a month for 10 years earns MAD 50,261.78 severance in Morocco (Labour Code Art. 53) – plus notice pay, and court damages if the dismissal is abusive. Web page: https://calcbright.com/morocco-severance-calculator

$400,000 home, 20% down at 7.32%: $2,198.18 a month before tax and insurance. Add escrow, PMI and extra payments, and see when PMI can be cancelled. Web page: https://calcbright.com/mortgage-calculator

$200 extra a month on $250,000 at 6.5% saves $64,927 and 5½ years. This mortgage payoff calculator adds lump sums, biweekly, UAE fees and a payoff goal. Web page: https://calcbright.com/mortgage-payoff-calculator

Decimal 255 is 11111111 in binary, 377 in octal and FF in hex. Convert between any bases from 2 to 36, paste 0x or 0b values, and handle 64-bit+ integers. Web page: https://calcbright.com/number-base-converter

Writing a check? Get the amount line in words, such as “and 45/100 dollars”, or spell out any number up to 999 trillion – including Indian lakh and crore. Web page: https://calcbright.com/number-to-words-converter

Enter any two of volts, amps, ohms and watts to get the other two. Also converts watts to amps for DC, single-phase and three-phase AC with power factor. Web page: https://calcbright.com/ohms-law-calculator

Estimate your bench, squat or deadlift max from a submaximal set: Epley, Brzycki and Lombardi 1RM side by side, plus a % of 1RM table for programming. Web page: https://calcbright.com/one-rep-max-calculator

Saudi overtime on SAR 6,000 basic plus SAR 3,000 allowances is SAR 50 an hour, not SAR 37.50. Get UAE, Saudi and US overtime pay from your real salary. Web page: https://calcbright.com/overtime-calculator

Pinpoint your likely ovulation day and six-day fertile window from your last period and cycle length, with the dates mapped out for your next four cycles. Web page: https://calcbright.com/ovulation-calculator

Turn a z, t, chi-square or F statistic into a left-, right- or two-tailed p-value, with critical values and whether it is significant at 0.05 and 0.01. Web page: https://calcbright.com/p-value-calculator

10 km in 50 minutes is 5:00 per km or 8:03 per mile. Get running pace and speed from any distance and time, or your finish time for a 5K to a marathon. Web page: https://calcbright.com/pace-calculator

A 12 × 12 ft room needs about 2 gallons for two coats. Enter room size, doors, windows and coats to get the wall area and the gallons or liters to buy. Web page: https://calcbright.com/paint-calculator

Make a random 8–64 character password from letters, digits and symbols and see its entropy in bits. Created on your device with crypto.getRandomValues. Web page: https://calcbright.com/password-generator

A 5% pay raise on $60,000 is $63,000 – only 1.25% more after 3.7% US inflation. See a raise per year, month and hour, what it is worth net and in the Gulf. Web page: https://calcbright.com/pay-raise-calculator

Measured 9.6 when the accepted value is 9.81? That is a 2.14% error. Get percent, absolute, relative and signed error for lab reports and experiments. Web page: https://calcbright.com/percent-error-calculator

What is 15% of 200? What percent is 30 of 200? Solve percent-of, percentage change, increase and decrease questions, with the working shown for each step. Web page: https://calcbright.com/percentage-calculator